Subaru WRX 2458 CC FI 2011, Extra Guard™ Panel Air Filter by FRAM®. Most dirt and dust enters the engine through the air filter and FRAM Extra Guard is engineered to provide twice the air filtration compared to an original...

Subaru WRX EJ255 Engine / EJ257 Engine 2011, Air Filter by MANN-Filter®. Get excellent engine protection and more economical operation just by replacing your air filter. This MANN air filter is specially designed for your vehicle...

Optimum protection for the engine, airflow meters and other sensorsPerfectly adapted in form and function to your vehicle

Subaru WRX / WRX STI 2011, Air Filter by Mahle®. If you have a dirty air filter, clogged PCV valve, or defective MAF sensor you may be tempted to just run down to the local auto parts chain store for a replacement, but before you...

OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located

Subaru WRX / WRX STI 2011, 33 Series Air Filter by K&N®. Get better performance, superior engine protection and more economical operation just by changing your air filter. The K&N air filter gives you increased airflow without...

Subaru WRX / WRX STI 2011, DryFlow Panel Air Filter by AEM®. AEM DryFlow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM DryFlow filters use an...

Subaru WRX 2011, Pro 5R Air Filter by aFe®. The Pro 5R air filter provides increased airflow to your engine without sacrificing filtration ability. The increased airflow allows your engine to make more power, and have better...

Subaru WRX 2011, Pro DRY S Air Filter by aFe®. The Pro DRY S is the perfect combination of performance, protection and convenience. When you want increased airflow with superior filtration, but ease of maintenance is a high...

Subaru WRX / WRX STI Base 2011, Factory Replacement Air Filter by GREEN FILTER®. Replace your factory air cleaner filter element with a Green Filter oiled-cotton filter and never buy another filter as long as you own your vehicle....

Universal EA Nanofiber Dry Air Filter by Injen®. This air filter is a major breakthrough in air filtration technology. It features a revolutionary synthetic nanofiber filter media that increases airflow, while capturing and holding...

Universal High Performance Air Filter by Injen®. Replace your worn out air filter with this high flow High Performance filter. It features a built-in velocity stack for added performance, urethane top and base to resist heat...

Universal Dual Flange Oval Straight Air Filter by K&N®. Get better performance, superior engine protection and more economical operation with a K&N Air Filter. K&N Universal Air Filters are available for just about any application.

Universal Oval Tapered Air Filter by K&N®. Get better performance, superior engine protection and more economical operation with a K&N Air Filter. K&N Universal Air Filters are available for just about any application.

Universal Round Tapered Air Filter by K&N®. Get better performance, superior engine protection and more economical operation with a K&N Air Filter. K&N Universal Air Filters are available for just about any application.

Universal Oval DryFlow Brute Force Air Filter by AEM®. These filters are much larger than standard DryFlow filters and engineered to exceed the airflow requirements of large displacement engines. They are designed to be durable and...

Exceeds the normal airflow capacity of large displacement enginesEasy to clean – no oiling required

Universal Round DryFlow Brute Force Air Filter by AEM®. These filters are much larger than standard DryFlow filters and engineered to exceed the airflow requirements of large displacement engines. They are designed to be durable...

Exceeds the normal airflow capacity of large displacement enginesEasy to clean – no oiling required

Universal Round Air Filter by Airaid®. Advanced air filtration technology, superior construction and the world's best warranty make an AIRAID air filter the best you can buy. It allows increased airflow and provides better air...

Universal Sweet 16" Round Air Filter by Airaid®, 16" OD x 14" ID. Advanced air filtration technology, superior construction and the world's best warranty make an AIRAID air filter the best you can buy. It allows increased airflow...

Universal Secret Weapon Air Filter by Weapon-R®. The Secret Weapon air filter performs better than any other air filter available in the market today. It provides maximum airflow with the protection of Polyurethane foam.

Universal Dragon Air Filter by Weapon-R®. The Polyurethane foam in the Dragon air filter flows more air and traps more dirt than comparable paper and cotton filters. The Dragon air filter is one of the highest rated air filters in...

Polyurethane foam flows more air and traps more dirt than conventional filtersDisassembles easily for cleaning

Universal Round Racing Air Filter by aFe®. These universal air filters are designed to provide performance and protection. They fit into the stock filter housing, but flow better and last longer. They feature extra-deep pleats and...

Universal HPR™ OE Replacement Air Filter by Spectre Performance®. Rooted in racing, Spectre Performance designs and builds every product with the same goal in mind - the best performance in the market proven on the racetrack! All...

High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality

Universal Pro 5R Air Filter by Takeda®. Fight dirt and dust and give your engine more air to breathe at the same time with this high-performance cotton gauze filter. Don’t simply discard it when it’s dirty: clean it with soap...

Universal Pro DRY S Air Filter by Takeda®. The Pro DRY S is the perfect combination of performance, protection and convenience. When you want increased airflow with superior filtration, but ease of maintenance is a high priority,...

Universal Color Match Cone Air Filter by Green Filter®. If you have a custom or oddball car that uses a hard-to-find cone-style aircleaner element, try matching it up here. Choose by inside diameter of the hose, outside diameter of...

Universal Color Match Dual Cone Air Filter by Green Filter®. If you have a custom or oddball car that uses a hard-to-find dual-cone aircleaner element, try matching it up here. Choose by inside diameter of the rubber bottom ring,...

Universal Color Match Round Air Filter by Green Filter®. If you have a custom or oddball car that uses a hard-to-find round aircleaner element, try matching it up here. Choose by inside diameter, outside diameter and overall...

Universal Cone Air Filter by Green Filter®. If you have a custom or oddball car that uses a hard-to-find cone-style aircleaner element, try matching it up here. Choose by inside diameter of the hose, outside diameter of the base,...

Universal Cylinder Air Filter by Green Filter®. If you have a custom or oddball car that uses a hard-to-find cylindrical aircleaner element, try matching it up here. Choose by inside diameter of the hose, outside diameter of the...

Universal Dual Cone Air Filter by Green Filter®. If you have a custom or oddball car that uses a hard-to-find dual-cone style aircleaner element, try matching it up here. Choose by inside diameter of the hose, outside diameter of...

Universal Round Air Filter by Green Filter®. If you have a custom or oddball car that uses a hard-to-find round aircleaner element, try matching it up here. Choose by inside diameter, outside diameter and overall height. This might...

Universal Conical Air Filter by Rugged Ridge®. Get increased airflow, better filtration and reduced maintenance with this high performance synthetic air filter. The increased airflow will improve engine performance, while the...

Universal Crankcase Air Filter by Green Filter®. Route your crankcase breather into one of these filters to keep dirt and bugs from entering your crankcase. It’s easy to clean, and will soak up some glop that otherwise would wind...

Universal Mock-Up Foam Insert by Spectre Performance®. Rooted in racing, Spectre Performance designs and builds every product with the same goal in mind - the best performance in the market proven on the racetrack! All products are...

High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality

Synthetic Air Filter Cleaner, 32 oz Trigger Sprayer by AEM®. Keep your AEM Dryflow™ performance air filter in top shape with AEM Synthetic Air Filter Cleaner. It loosens and dissolves dirt and grime build up so it can be rinsed...

Maintains the life and performance of your AEM Dryflow performance air filterLoosens and dissolves dirt and grime build up to facilitate cleaning

Universal Mass Air Flow Adapter by Weapon-R®, 3" Inlet. This universal adapter will let you attach that air cleaner of your choice to the inlet of your airflow sensor. Made from rugged plastic, it bolts to flat inlet of the sensor,...

Universal Air Cleaner Breather Tube Fitting by Spectre Performance®. Rooted in racing, Spectre Performance designs and builds every product with the same goal in mind - the best performance in the market proven on the racetrack!...

High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality

Universal Air Filter Recharge Kit by Injen®. Keep your Injen cotton gauze High Performance air filter in top shape with the Air Filter Recharge Kit. It includes the 12oz. filter cleaner that loosens and removes dirt particles from...

Universal Air Filter Tune-Up Kit by AIRAID®. Keep your AIRAID SynthaFlow air filter in top shape with the Air Filter Tune-Up Kit. It includes the filter cleaner that loosens and removes dirt particles from the filter, and the...

Maintains the life and performance of your SynthaFlow air filterIncludes filter cleaner and filter oil

Universal Restore Kit by aFe®. Keep your aFe performance air filter in top shape with the Restore Kit. The kit includes everything you need to thoroughly clean your air filter and put it back to like new condition.

Universal Restore Kit by Takeda®. Keep your Takeda performance air filter in top shape with the Restore Kit. The kit includes everything you need to thoroughly clean your air filter and put it back to like new condition.

Universal Cleaning Kit by Green Filter®. Clean and recharge your Green Filter aircleaner element with these products. The air filter cleaner makes the dirt and filter oil rinse off easily, while the spray bottle of air filter oil...

Universal Snorkel Pre-Cleaner Filter by Spec-D®. Spec-D figuratively has their finger on the pulse of the automotive aftermarket, so they can bring you the latest style and best performing parts and accessories. No matter whether...

Custom style lighting parts for a unique appearance and better visibilityHigh-tech engine parts for the most power and best performance

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